Zelda is my favourite. Run into someones house, pick up their pots and throw them on the floor, then leave again.

This and Dragon Warrior (break every vase, barrel, well, everything breakable, steal from every shelf, etc)!

Original post made me remember Might and Magic VII and Emerald Island, with some NPCs holding vital quest items and one nice wand. Though NPCs don't give it away for free - they want gold. Hack them! If you don't want to see your in-game reputation take a sink, you can always lure few dozens dragonflies from nearby forest unto poor village and let them slaughter everything. Tons of bonus gold + quest items are guaranteed.

You HAVE to be some kind of psycho or another to go up against things like Deathwing and the Lich King. The people of Azeroth are just humoring us with these quests and rewards because they need us to go fight the big bads that tend to pop up every couple of years. Otherwise, they'd throw us in prison where we belong.